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A small example package from Hufengguo, CUC

Project description

扩展库介绍

这是中国传媒大学胡凤国老师上课分享的自定义函数库,其中包含几个常用的文本处理函数。发布本扩展库主要是方便上课学生练习Python程序,顺便分享给其他需要的Pythoner。

刚学会发布扩展库,PyPI很多东西还不熟,如有问题,请多提宝贵意见。

安装说明

pip install hufengguo

用法说明

具体用法见胡凤国老师的上课教材:《Python程序设计(基于计算思维和新文科建设)》,ISBN:9787121435577,胡凤国,电子工业出版社,2022年6月。

这里举一些简单的例子。

产生1到100之内的素数

from hufengguo import isprime
x = [i for i in range(101) if isprime(i)]
print(x)

去掉多行文本中的空白行和每行首尾空白符

from hufengguo import remove_white_from_text
s = " 12345\t\n  上山打老虎\n \n\n"
t = remove_white_from_text(s)
print("字符串s:", "-"*20, s, "-"*20, "\n字符串t:", "-"*20, t, "-"*20, sep="\n")

调用jieba扩展库对一个文本文件进行分词和词性标注

from hufengguo import segtag_by_jieba
segtag_by_jieba(r"in.txt", r"out.txt")

本函数会自动判断文本文件的编码并进行读取,生成文件的默认编码是utf-8-sig。

调用jieba扩展库对一个目录下的文本文件进行分词和词性标注

from hufengguo import my_path2path, segtag_by_jieba
my_path2path(r"in", [".txt"], r"out", segtag_by_jieba)

本函数会自动搜索目录及子目录下的所有文本文件,进行分词和词性标注操作之后保存到目标目录,目标目录会保持跟源目录相同的目录结构。

本库提供的函数my_path2path()功能很强,它把目录对目录的多文件操作转化为单文件对单文件的操作。第二个参数可以换成其它的扩展名,第四个参数是一个函数名,我们可以换成其它的自定义函数来完成其它文本处理任务(要求自定义函数具有两个参数,第1个参数是源文件名,第2个参数是目标文件名,自定义函数的功能是对源文件进行自定义操作,操作结果写入目标文件)。

数字与汉字读法互转

本库采用我国传统数学的大数体系:零一二三四五六七八九十百千万亿兆京垓秭穰沟涧正载极。从十开始,逢十进位;从万开始,逢万进位,1兆等于1万亿(10的12次方),1京等于1万兆(10的16次方),……,1极等于1万载(10的48次方),传统大数体系可以表示长达96位数字。本库既支持长达96位数字的传统大数体系,又支持目前只通过万和亿循环的大数表示方法。

from hufengguo import digit2hanzi, hanzi2digit

print(hanzi2digit("一百二十三"))
print(hanzi2digit("壹佰贰拾叁"))
print(hanzi2digit("三兆")
print(hanzi2digit("三万亿"))

print(digit2hanzi(123))
print(digit2hanzi(123, daxieflag=True))
print(digit2hanzi(3*10**12))
print(digit2hanzi(3*10**12, wanyiflag=True))
print(digit2hanzi(1234500000000))
print(digit2hanzi(1234500000000, wanyiflag=True))
print(digit2hanzi(12345000000000000))
print(digit2hanzi(12345000000000000, wanyiflag=True))

人民币金额的正常汉字写法与大写写法互转

from hufengguo import xiao2da, da2xiao
print(xiao2da("一万二千三百零六"))
print(da2xiao("壹万贰仟叁佰零陆"))

分节格式化数字

from hufengguo import fenjie_nummber
print(fenjie_nummber(12345678901, group=3))
print(fenjie_nummber(12345678901, group=3, sep="_"))
print(fenjie_nummber(12345678901))
print(fenjie_nummber(12345678901, group=4))
print(fenjie_nummber(12345678901, group=5, sep=","))
print(fenjie_nummber(-1234567))

创建目录、删除文件和目录

本库给出的函数功能比os.makedirs()、os.remove()和shutil.rmtree()都要好,这些都处理不了目录名的最后一个字符是空格的情况。

from hufengguo import make_dir_exists, my_os_remove, my_shutil_rmtree
\# 创建目录(123后面有个空格)
\# 注意os.makedirs(r"abc\123 ")会报错
fn = r"abc\123 \test.txt"
flag, p = make_dir_exists(fn, fileflag=True)
print(flag, p)

\# 生成文件
with open(fn, "wt") as fpw:
    fpw.write("上山打老虎")

\# 为文件添加只读属性
chmod(fn, S_IREAD)

\# 删除文件(注意os.remove(fn)会报错)
print(exists(fn))
print(my_os_remove(fn))
print(exists(fn))

\# 删除目录(注意shutil.rmtree(r"abc")会报错)
print(exists(r"abc"))
flag = my_shutil_rmtree(r"abc")
print(flag)
print(exists(r"abc"))

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